运行jsp时java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
时间: 2023-12-12 17:35:43 浏览: 108
当运行JSP时,如果出现“java.lang.ClassNotFoundException: com.mysql.jdbc.Driver”错误,这通常是由于缺少MySQL JDBC驱动程序引起的。为了解决这个问题,你需要按照以下步骤进行操作:
1.下载MySQL JDBC驱动程序,可以从MySQL官方网站下载或者从Maven中央仓库下载。
2.将下载的JAR文件复制到你的项目的classpath中,例如将其放在WEB-INF/lib目录下。
3.在你的JSP页面中添加以下代码,以加载MySQL JDBC驱动程序:
```java
<%@ page import="java.sql.*" %>
<%
try {
Class.forName("com.mysql.jdbc.Driver");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
%>
```
4.在你的JSP页面中使用JDBC连接到MySQL数据库,例如:
```java
<%
Connection conn = null;
Statement stmt = null;
try {
conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/mydatabase", "username", "password");
stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT * FROM mytable");
while (rs.next()) {
out.println(rs.getString("column1"));
}
} catch (SQLException e) {
e.printStackTrace();
} finally {
try {
if (stmt != null) stmt.close();
if (conn != null) conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
%>
```
阅读全文
相关推荐



















